| 摘要 |
PROBLEM TO BE SOLVED: To maintain an appropriate game balance and an excitement and enjoyment by imparting and controlling a stepwise privilege game after a jackpot. SOLUTION: A privilege game state advantageous for a player is imparted after finishing a jackpot, and when the jackpot is won again during the privilege game state, a further privilege game changed in the degree of advantage is imparted. However, a certain upper limit is put on the degree of advantage to control excessive gambling performance and make a player have a different game purpose so as to provide an interesting game capable of maintaining expectancy. COPYRIGHT: (C)2009,JPO&INPIT
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